278 GEOLOGICAL SURVEY OF CANADA. 



&c.) The form known as var. incisum has been reported from Montreal, 

 Que. (HcCord.) Owen Sound, Ont. (Macoun.') London and Hamilton, 

 Ont. (Burgess.) 



(3015.) A. munitum, Katif., Enum. Pil., 236. Hook.,Fl. Bor.-Am., 

 ii., 261. Macoun & Burgess, Trans. Eoy. Soc. Can., ii., sect, iv., 

 211. 



An evergreen species, growing in woods and among rocks, confined 

 with us to British Columbia. North- West America. (Menzies.) Nootka, 

 Vancouver Island. (Mertens.) Very abundant around Victoria, and 

 common in rocky woods up the Fraser River to far above Yale, also on 

 mountain slopes at Griffin Lake, Eagle Eiver. (Macoun.) Damp 

 thickets, New Westminster. (Fletcher.) The forms which have been 

 described as var. indso-serratum and var. imbricans have been found 

 about Victoria, the former by Prof. Macoun. the latter by Mr. Fletcher. 



(3016.) A. aculeatum, Swartz, Schrad. Journ.,ii., 37; Syn. Fil., 53. 

 Hook. & Baker, Syn. Fil., 252. Macoun & Burgess, Trans. Koy. 

 Soc. Can., ii., sect, iv., 211. Burgess, Trans. Eoy. Soc. Can., iv., 

 sect, iv., 16. 



A. lobatum, Smith, Fl. Brit, 1123. Swartz, Syn. Fil., 53. 

 A. aculealum, var. lobatum, Kunze, Bot. Zeit. (1848), 356. Eaton, Ferns 

 of N. Am., ii., 124. 



Our only known station for typical A. aculeatum is Port Simpson, 

 Northern B. C., where it was collected, in moist rocky places, by Mr. 

 Anderson, in 1885. Further research in that district will probably 

 prove it to be less rare. 



Var. Braunii, Doell (Koch), Ehein. PL, 27. Macoun & Burgess, 

 Trans. Eoy. Soc. Can., ii., sect., iv., 212. 



Aspidium Braunii, Spenner, Fl. Frib., i., 9. 



A. aculealum, Pursh, Fl. Am. Sept., ii., 662. Hook., Fl. Bor.-Am., ii., 261. 



Provancher, Fl. Can., 719. 



Polystichum angulare, Presl, var. Braunii, Lawson, Can. Nat., i., 285. 

 Polystichum aculeatum, Moore, var. Braunii, Watt, Can. Nat., iv., 363. 

 Polystichum Braunii, Lawson, Fern Fl. Can., 239. 



Found in the crevices of moist, shaded rocks, and in rocky woods, its 

 range being restricted to the Provinces of Nova Scotia, New Brunswick, 

 Quebec, and British Columbia. Eare and local in Nova Scotia ; occurr- 

 ing at Marble Mountain, Bras d'Or Lake ; Sherman's Mountain, Port 

 Mulgrave, Straitjof Canso; Ehler's Waterfall, near G-uysborough j and 



